Hy-Gain SPT-500 Vertical Antenna, 10/12m 1.5KW

The RBD-5 allows a automatic 5-seconds brake delay for your rotator. This product allows a 5 second delay to ensure that the rotator is fully stopped before the brake system is re-engaged. This eliminates accidentally engaging the brake while the rotator is in movement. This is compatible with the HAM-II, HAM-III, HAM-IV, HAM-V, and Tailtwister Hy-Gain Rotators. Easy to install. Kit includes pre-assembled PCB and hardware.

This fantastic true full-size 5/8 Wave 10 / 12 Meter vertical antenna from Hy-Gain was a legend in the 70’s . . . now it’s back to prove its legendary status once again!

A Full-size radiator with lower radiation angle concentrates power closer to the ground, where you want it. Measures 22 foot, 9.5 inches. Larger diameter, heavy wall ply-tubular construction makes the new Super-Penetrator™ the absolute top omnidirectional antenna around! Four full-length radials and special machine-formed brackets give extra talk-power and overall strength.

Electrical performance has been increased to a new standard by the use of a longer radiator and double-matching tuning with linear phasing techniques that provide low SWR and more radiated energy. The double-matching also provides a DC path to ground to drain off precipitation static, giving an extremely low noise antenna capable of high power.

SPT-500 is specifically designed to accept AM-FM-SSB-DSB signals with low loss. Handles 1.5 killowatts. This antenna is illegal for 11 Meters use.

• Gain (dB): 5.3 dB
• SWR (at resonance): Less than 1.2:1
• Nominal input impedance: 52 Ohms
• Lightning Protection: DC Ground
• Height: Twenty-two feet, six inches
• Radial Length: Eight feet nine inches
• Wind (Survival): 80 MPH
• Accepted mast size: 1 ¼” to 1 ?” OD